<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登录页</title>
</head>
<body>
<form action="/doLogin" method="post">
    用户名:<input name="username"><br>
    密码:<input name="password" type="password"><br>
    <input type="hidden" name="url" th:value="${url}">
    <input type="submit" value="登录">
</form>

</body>
</html>